Unfortunately, stress has become a part of our daily lives. What most do not know is that certain stress factors can be measured physiologically. Corstisol (the stress hormone) can have short term and long term effects on the body including weight gain, anxiety, insomnia, etc . . . By simply measuring your cortisol levels you may find many of the answers to your health related concerns. Full day cortisol tests measure your levels at 4 different times of the day for the most accurate results. AM/PM cortisol testing tests for levels upon waking and at bedtime.